Whiffletree-coupling



H. STREIP. WHIFPLETREE COUPLING.

1 No. 364,189. Patented May 31, 1887.

(No Model.)

UNITED STATES PATENT OFFICE.

HENRY STREIF, OF RUSH HILL, ASSIGNOR OF ONE-HALF TO OTTO BRINK- NEEYER, OF ST. LOUIS, MISSOURI.

WHlFFLETREE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 364,189, dated May 31, 1887.

Serial No. 228,736. No model.)

all whom, it may concern: Be it known that I, HENRY STREIF, a citizen of the United States, residing at Bush Hill, in the county of Audrain and State of Missouri, have invented a new and useful Improvement in XVhiffletreeGouplings, of which the following is a specification.

The invention relates to improvements in whiffietree-conplings, the objects being to pro to vide a coupling that will hold the whifl'letree firmly, so that it will not rattle nor tilt over upon its support, and which will take asmooth finish; and it consists in the construction and novel arrangement of the various parts, here I 5 inafted described, illustrated in the drawings, and pointed out in the claims hereto appended. 111 the accompanying drawings, Figure 1 represents a perspective view taken from the front of the end of a doublctree and the central part of a singletree, the invention being shown coupling the latter to the former. Figs. 2 and 3 represent, respectively, end and rear views of the same. Fig. 4 represents a perspective View of the doubletree-strap detached. Fig. 5 represents a plan view of the plate on the lower surface of the singletree. Fig. 6 rep-V resents a vertical transverse section through the doubletree, singletree, and coupling in the pivoted plane thereof.

Referring to the drawings, A designates the end part of a doubletree, having upon it the strap B, the front and rear plates, (2 b, of which are set in depressions in the corresponding surfaces of the doubletree, so as to be flush 5 therewith. The upper plate, 6 of the strap lies on the upper surface of the doublctree, and has ears extending from its edges, through openings in which ears screws are driven into the doublctree to secure the strap in place, the heads of the screws being countersunk in said openings. A boss, I), rises centrally from the plate b, and is provided with a central threaded opening for the engagement of a screw, hereinafter described.

0 is the central part of a singletree, having upon its under surface a plate, 1), correspond- ,ing in shape to the top plate, I)", of the strap B, and provided with similar ears having countersunk openings, through which it is se- 50 cured to the singletree. d is a central opening in the plate D, \vh icli fits over the boss b pivoting the singletree upon the doubletree. d is a narrow longitudinal plate, secured by any suitable means to the upper surface of the singlctree, and provided centrally with an opening 5 5 over a vertical bolt-opening running through the singletree. Y

E is embrace and stop bar, with its lower end enlarged and perforated for the passage of a bolt, hereinafterdescribed. vertically from its lower end to a point level with the upper surface of the doubletreestrap.

It then makes a semicircular curve, running first backward and upward,and then forward, and has its horizontal upper end enlarged and 6 perforated and resting, when the parts are in place, upon the flattened central part of the plate (1, its perforation lying over the opening in the latter.

F is a bolt passing through the perforated lower end of the bar E and transversely through suitable openings in the doubletree and doubletree-strap, andf is a nut that engages its lapped end outside of the front plate of the latter. The bar E can thus be turned down laterally upon said bolt when it is desired to uncouple the singletree from the doubletree.

G is a bolt passing through the openings in the upper end of the bar E, the plate (I, and the singletree, and engaging in the threaded opening in the boss I) of the strap B. By means of this bolt the singletree,while having perfectly free lateral motion on the doubletree, is prevented from having vertical motion thereon, so that all the usual jarring and rattling of one on the other is prevented.

The bar E, by its comparatively rigid attachments to the singletree and doubletree, prevents the former from twisting or tilting forward or backward on the latter, and consequently strengthens their union. It also acts as a stop to the swing of the singlctree, the arms of which come incontact with it where tending to swing too far back.

The doublctree-strap, the plates on the singletree, and the bar E can all be finished so as to make a handsome as well as a useful joint.

Having thus described my invention, I claim- 1. The combination, with the doubletree- The said bar rises IOU strap B, provided with the central boss having a threaded opening, of the plate D, secured to the under surface of the singletree and provided with an opening fitting over and turning on the boss of the doubletree-strap, the curved brace and-stop bar having its lower end secured,substantially as described, to the doubletree, and the bolt passing through the perforated upper end of said bar and through a vertical opening in the singletree and engaging the threaded openingsin the doubletree-strap, substantially as described.

2. The combination of the doubletree A, the strap B, having the front and rear plates, 1) I), set flush in depression in the corresponding Vi tnesses:

WM. FEUTZ, JAS. A. CURRY. 

